NXP KL3x Reference guide

KL36 Sub-Family Reference Manual

Supports: MKL36Z64VLH4, MKL36Z128VLH4, MKL36Z256VLH4,

MKL36Z256VMP4, MKL36Z64VLL4, MKL36Z128VLL4,

MKL36Z256VLL4, MKL36Z128VMC4, MKL36Z256VMC4

Document Number: KL36P121M48SF4RM

Rev. 3, July 2013

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Contents

Section number Title Page

Chapter 1

About This Document

1.1 Overview.......................................................................................................................................................................35

1.1.1 Purpose.........................................................................................................................................................35

1.1.2 Audience......................................................................................................................................................35

1.2 Conventions..................................................................................................................................................................35

1.2.1 Numbering systems......................................................................................................................................35

1.2.2 Typographic notation...................................................................................................................................36

1.2.3 Special terms................................................................................................................................................36

Chapter 2

Introduction

2.1 Overview.......................................................................................................................................................................37

2.1.1 Kinetis L series.............................................................................................................................................37

2.1.2 KL36 sub-family introduction.....................................................................................................................40

2.2 Module functional categories........................................................................................................................................41

2.2.1 ARM Cortex-M0+ core modules.................................................................................................................42

2.2.2 System modules...........................................................................................................................................42

2.2.3 Memories and memory interfaces................................................................................................................43

2.2.4 Clocks...........................................................................................................................................................43

2.2.5 Security and integrity modules....................................................................................................................44

2.2.6 Analog modules...........................................................................................................................................44

2.2.7 Timer modules.............................................................................................................................................44

2.2.8 Communication interfaces...........................................................................................................................45

2.2.9 Human-machine interfaces..........................................................................................................................46

2.3 Orderable part numbers.................................................................................................................................................46

Chapter 3

Chip Configuration

3.1 Introduction...................................................................................................................................................................47

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3.2 Module to module interconnects...................................................................................................................................47

3.2.1 Interconnection overview.............................................................................................................................47

3.2.2 Analog reference options.............................................................................................................................49

3.3 Core modules................................................................................................................................................................49

3.3.1 ARM Cortex-M0+ core configuration.........................................................................................................50

3.3.2 Nested vectored interrupt controller (NVIC) configuration.........................................................................52

3.3.3 Asynchronous wake-up interrupt controller (AWIC) configuration............................................................56

3.4 System modules............................................................................................................................................................57

3.4.1 SIM configuration........................................................................................................................................57

3.4.2 System mode controller (SMC) configuration.............................................................................................58

3.4.3 PMC configuration.......................................................................................................................................58

3.4.4 Low-Leakage Wake-up Unit (LLWU) Configuration.................................................................................59

3.4.5 MCM configuration.....................................................................................................................................61

3.4.6 Crossbar-light switch configuration.............................................................................................................62

3.4.7 Peripheral bridge configuration...................................................................................................................63

3.4.8 DMA request multiplexer configuration......................................................................................................64

3.4.9 DMA Controller Configuration...................................................................................................................67

3.4.10 Computer operating properly (COP) watchdog configuration....................................................................67

3.5 Clock modules..............................................................................................................................................................70

3.5.1 MCG configuration......................................................................................................................................70

3.5.2 OSC configuration.......................................................................................................................................70

3.6 Memories and memory interfaces.................................................................................................................................71

3.6.1 Flash memory configuration........................................................................................................................71

3.6.2 Flash memory controller configuration........................................................................................................74

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3.6.3 SRAM configuration....................................................................................................................................74

3.6.4 System Register File Configuration.............................................................................................................77

3.7 Analog...........................................................................................................................................................................77

3.7.1 16-bit SAR ADC configuration...................................................................................................................78

3.7.2 CMP configuration.......................................................................................................................................81

3.7.3 12-bit DAC Configuration...........................................................................................................................83

3.8 Timers...........................................................................................................................................................................85

3.8.1 Timer/PWM module configuration..............................................................................................................85

3.8.2 PIT Configuration........................................................................................................................................87

3.8.3 Low-power timer configuration...................................................................................................................89

3.8.4 RTC configuration.......................................................................................................................................90

3.9 Communication interfaces............................................................................................................................................92

3.9.1 SPI configuration.........................................................................................................................................92

3.9.2 I2C configuration.........................................................................................................................................93

3.9.3 UART configuration....................................................................................................................................94

3.9.4 I2S configuration..........................................................................................................................................95

3.10 Human-machine interfaces (HMI)................................................................................................................................98

3.10.1 GPIO configuration......................................................................................................................................98

3.10.2 TSI Configuration........................................................................................................................................101

3.10.3 Segment LCD Configuration.......................................................................................................................102

Chapter 4

Memory Map

4.1 Introduction...................................................................................................................................................................105

4.2 System memory map.....................................................................................................................................................105

4.3 Flash memory map........................................................................................................................................................106

4.3.1 Alternate non-volatile IRC user trim description.........................................................................................106

4.4 SRAM memory map.....................................................................................................................................................107

4.5 Bit Manipulation Engine...............................................................................................................................................107

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4.6 Peripheral bridge (AIPS-Lite) memory map.................................................................................................................108

4.6.1 Read-after-write sequence and required serialization of memory operations..............................................108

4.6.2 Peripheral bridge (AIPS-Lite) memory map................................................................................................109

4.6.3 Modules restricted access in user mode.......................................................................................................112

4.7 Private Peripheral Bus (PPB) memory map..................................................................................................................112

Chapter 5

Clock Distribution

5.1 Introduction...................................................................................................................................................................115

5.2 Programming model......................................................................................................................................................115

5.3 High-level device clocking diagram.............................................................................................................................115

5.4 Clock definitions...........................................................................................................................................................116

5.4.1 Device clock summary.................................................................................................................................117

5.5 Internal clocking requirements.....................................................................................................................................119

5.5.1 Clock divider values after reset....................................................................................................................120

5.5.2 VLPR mode clocking...................................................................................................................................120

5.6 Clock gating..................................................................................................................................................................121

5.7 Module clocks...............................................................................................................................................................121

5.7.1 PMC 1-kHz LPO clock................................................................................................................................122

5.7.2 COP clocking...............................................................................................................................................122

5.7.3 RTC clocking...............................................................................................................................................123

5.7.4 LPTMR clocking..........................................................................................................................................123

5.7.5 TPM clocking...............................................................................................................................................124

5.7.6 SPI clocking.................................................................................................................................................124

5.7.7 I2C clocking.................................................................................................................................................125

5.7.8 UART clocking............................................................................................................................................125

5.7.9 I2S/SAI clocking..........................................................................................................................................125

5.7.10 SLCD clocking.............................................................................................................................................126

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Chapter 6

Reset and Boot

6.1 Introduction...................................................................................................................................................................129

6.2 Reset..............................................................................................................................................................................129

6.2.1 Power-on reset (POR)..................................................................................................................................130

6.2.2 System reset sources....................................................................................................................................130

6.2.3 MCU resets..................................................................................................................................................133

6.2.4 RESET_b pin ..............................................................................................................................................135

6.2.5 Debug resets.................................................................................................................................................135

6.3 Boot...............................................................................................................................................................................136

6.3.1 Boot sources.................................................................................................................................................136

6.3.2 FOPT boot options.......................................................................................................................................136

6.3.3 Boot sequence..............................................................................................................................................137

Chapter 7

Power Management

7.1 Introduction...................................................................................................................................................................139

7.2 Clocking modes............................................................................................................................................................139

7.2.1 Partial Stop...................................................................................................................................................139

7.2.2 DMA Wakeup..............................................................................................................................................140

7.2.3 Compute Operation......................................................................................................................................141

7.2.4 Peripheral Doze............................................................................................................................................142

7.2.5 Clock gating.................................................................................................................................................143

7.3 Power modes.................................................................................................................................................................143

7.4 Entering and exiting power modes...............................................................................................................................145

7.5 Module operation in low-power modes........................................................................................................................146

Chapter 8

Security

8.1 Introduction...................................................................................................................................................................151

8.1.1 Flash security...............................................................................................................................................151

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8.1.2 Security interactions with other modules.....................................................................................................151

Chapter 9

Debug

9.1 Introduction...................................................................................................................................................................153

9.2 Debug port pin descriptions..........................................................................................................................................153

9.3 SWD status and control registers..................................................................................................................................154

9.3.1 MDM-AP Control Register..........................................................................................................................155

9.3.2 MDM-AP Status Register............................................................................................................................156

9.4 Debug resets..................................................................................................................................................................158

9.5 Micro Trace Buffer (MTB)...........................................................................................................................................159

9.6 Debug in low-power modes..........................................................................................................................................159

9.7 Debug and security.......................................................................................................................................................160

Chapter 10

Signal Multiplexing and Signal Descriptions

10.1 Introduction...................................................................................................................................................................161

10.2 Signal multiplexing integration....................................................................................................................................161

10.2.1 Port control and interrupt module features..................................................................................................162

10.2.2 Clock gating.................................................................................................................................................163

10.2.3 Signal multiplexing constraints....................................................................................................................163

10.3 Pinout............................................................................................................................................................................163

10.3.1 KL36 Signal Multiplexing and Pin Assignments........................................................................................163

10.3.2 KL36 pinouts................................................................................................................................................167

10.4 Module Signal Description Tables................................................................................................................................171

10.4.1 Core modules...............................................................................................................................................171

10.4.2 System modules...........................................................................................................................................172

10.4.3 Clock modules..............................................................................................................................................172

10.4.4 Memories and memory interfaces................................................................................................................172

10.4.5 Analog..........................................................................................................................................................172

10.4.6 Timer Modules.............................................................................................................................................173

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10.4.7 Communication interfaces...........................................................................................................................174

10.4.8 Human-machine interfaces (HMI)...............................................................................................................176

Chapter 11

Port Control and Interrupts (PORT)

11.1 Introduction...................................................................................................................................................................177

11.2 Overview.......................................................................................................................................................................177

11.2.1 Features........................................................................................................................................................177

11.2.2 Modes of operation......................................................................................................................................178

11.3 External signal description............................................................................................................................................179

11.4 Detailed signal description............................................................................................................................................179

11.5 Memory map and register definition.............................................................................................................................179

11.5.1 Pin Control Register n (PORTx_PCRn).......................................................................................................185

11.5.2 Global Pin Control Low Register (PORTx_GPCLR)..................................................................................187

11.5.3 Global Pin Control High Register (PORTx_GPCHR).................................................................................188

11.5.4 Interrupt Status Flag Register (PORTx_ISFR)............................................................................................188

11.6 Functional description...................................................................................................................................................189

11.6.1 Pin control....................................................................................................................................................189

11.6.2 Global pin control........................................................................................................................................190

11.6.3 External interrupts........................................................................................................................................190

Chapter 12

System Integration Module (SIM)

12.1 Introduction...................................................................................................................................................................193

12.1.1 Features........................................................................................................................................................193

12.2 Memory map and register definition.............................................................................................................................193

12.2.1 System Options Register 1 (SIM_SOPT1)..................................................................................................195

12.2.2 SOPT1 Configuration Register (SIM_SOPT1CFG)....................................................................................195

12.2.3 System Options Register 2 (SIM_SOPT2)..................................................................................................196

12.2.4 System Options Register 4 (SIM_SOPT4)..................................................................................................198

12.2.5 System Options Register 5 (SIM_SOPT5)..................................................................................................199

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12.2.6 System Options Register 7 (SIM_SOPT7)..................................................................................................201

12.2.7 System Device Identification Register (SIM_SDID)...................................................................................202

12.2.8 System Clock Gating Control Register 4 (SIM_SCGC4)............................................................................204

12.2.9 System Clock Gating Control Register 5 (SIM_SCGC5)............................................................................206

12.2.10 System Clock Gating Control Register 6 (SIM_SCGC6)............................................................................208

12.2.11 System Clock Gating Control Register 7 (SIM_SCGC7)............................................................................210

12.2.12 System Clock Divider Register 1 (SIM_CLKDIV1)...................................................................................210

12.2.13 Flash Configuration Register 1 (SIM_FCFG1)...........................................................................................212

12.2.14 Flash Configuration Register 2 (SIM_FCFG2)...........................................................................................213

12.2.15 Unique Identification Register Mid-High (SIM_UIDMH)..........................................................................214

12.2.16 Unique Identification Register Mid Low (SIM_UIDML)...........................................................................214

12.2.17 Unique Identification Register Low (SIM_UIDL)......................................................................................215

12.2.18 COP Control Register (SIM_COPC)...........................................................................................................215

12.2.19 Service COP Register (SIM_SRVCOP)......................................................................................................216

12.3 Functional description...................................................................................................................................................217

Chapter 13

System Mode Controller (SMC)

13.1 Introduction...................................................................................................................................................................219

13.2 Modes of operation.......................................................................................................................................................219

13.3 Memory map and register descriptions.........................................................................................................................221

13.3.1 Power Mode Protection register (SMC_PMPROT).....................................................................................222

13.3.2 Power Mode Control register (SMC_PMCTRL).........................................................................................223

13.3.3 Stop Control Register (SMC_STOPCTRL).................................................................................................224

13.3.4 Power Mode Status register (SMC_PMSTAT)...........................................................................................226

13.4 Functional description...................................................................................................................................................226

13.4.1 Power mode transitions................................................................................................................................226

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13.4.2 Power mode entry/exit sequencing..............................................................................................................229

13.4.3 Run modes....................................................................................................................................................232

13.4.4 Wait modes..................................................................................................................................................233

13.4.5 Stop modes...................................................................................................................................................234

13.4.6 Debug in low power modes.........................................................................................................................237

Chapter 14

Power Management Controller (PMC)

14.1 Introduction...................................................................................................................................................................239

14.2 Features.........................................................................................................................................................................239

14.3 Low-voltage detect (LVD) system................................................................................................................................239

14.3.1 LVD reset operation.....................................................................................................................................240

14.3.2 LVD interrupt operation...............................................................................................................................240

14.3.3 Low-voltage warning (LVW) interrupt operation.......................................................................................240

14.4 I/O retention..................................................................................................................................................................241

14.5 Memory map and register descriptions.........................................................................................................................241

14.5.1 Low Voltage Detect Status And Control 1 register (PMC_LVDSC1)........................................................242

14.5.2 Low Voltage Detect Status And Control 2 register (PMC_LVDSC2)........................................................243

14.5.3 Regulator Status And Control register (PMC_REGSC)..............................................................................244

Chapter 15

Low-Leakage Wakeup Unit (LLWU)

15.1 Introduction...................................................................................................................................................................247

15.1.1 Features........................................................................................................................................................247

15.1.2 Modes of operation......................................................................................................................................248

15.1.3 Block diagram..............................................................................................................................................249

15.2 LLWU signal descriptions............................................................................................................................................249

15.3 Memory map/register definition...................................................................................................................................250

15.3.1 LLWU Pin Enable 1 register (LLWU_PE1)................................................................................................251

15.3.2 LLWU Pin Enable 2 register (LLWU_PE2)................................................................................................252

15.3.3 LLWU Pin Enable 3 register (LLWU_PE3)................................................................................................253

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15.3.4 LLWU Pin Enable 4 register (LLWU_PE4)................................................................................................254

15.3.5 LLWU Module Enable register (LLWU_ME)............................................................................................255

15.3.6 LLWU Flag 1 register (LLWU_F1).............................................................................................................257

15.3.7 LLWU Flag 2 register (LLWU_F2).............................................................................................................258

15.3.8 LLWU Flag 3 register (LLWU_F3).............................................................................................................260

15.3.9 LLWU Pin Filter 1 register (LLWU_FILT1)..............................................................................................262

15.3.10 LLWU Pin Filter 2 register (LLWU_FILT2)..............................................................................................263

15.4 Functional description...................................................................................................................................................264

15.4.1 LLS mode.....................................................................................................................................................265

15.4.2 VLLS modes................................................................................................................................................265

15.4.3 Initialization.................................................................................................................................................265

Chapter 16

Reset Control Module (RCM)

16.1 Introduction...................................................................................................................................................................267

16.2 Reset memory map and register descriptions...............................................................................................................267

16.2.1 System Reset Status Register 0 (RCM_SRS0)............................................................................................268

16.2.2 System Reset Status Register 1 (RCM_SRS1)............................................................................................269

16.2.3 Reset Pin Filter Control register (RCM_RPFC)..........................................................................................270

16.2.4 Reset Pin Filter Width register (RCM_RPFW)...........................................................................................271

Chapter 17

Bit Manipulation Engine (BME)

17.1 Introduction...................................................................................................................................................................273

17.1.1 Overview......................................................................................................................................................274

17.1.2 Features........................................................................................................................................................274

17.1.3 Modes of operation......................................................................................................................................275

17.2 Memory map and register definition.............................................................................................................................275

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17.3 Functional description...................................................................................................................................................275

17.3.1 BME decorated stores..................................................................................................................................276

17.3.2 BME decorated loads...................................................................................................................................283

17.3.3 Additional details on decorated addresses and GPIO accesses....................................................................289

17.4 Application information................................................................................................................................................290

Chapter 18

Miscellaneous Control Module (MCM)

18.1 Introduction...................................................................................................................................................................293

18.1.1 Features........................................................................................................................................................293

18.2 Memory map/register descriptions...............................................................................................................................293

18.2.1 Crossbar Switch (AXBS) Slave Configuration (MCM_PLASC)................................................................294

18.2.2 Crossbar Switch (AXBS) Master Configuration (MCM_PLAMC)............................................................295

18.2.3 Platform Control Register (MCM_PLACR)................................................................................................295

18.2.4 Compute Operation Control Register (MCM_CPO)...................................................................................298

Chapter 19

Micro Trace Buffer (MTB)

19.1 Introduction...................................................................................................................................................................301

19.1.1 Overview......................................................................................................................................................301

19.1.2 Features........................................................................................................................................................304

19.1.3 Modes of operation......................................................................................................................................305

19.2 External signal description............................................................................................................................................305

19.3 Memory map and register definition.............................................................................................................................306

19.3.1 MTB_RAM Memory Map...........................................................................................................................306

19.3.2 MTB_DWT Memory Map...........................................................................................................................319

19.3.3 System ROM Memory Map.........................................................................................................................329

Chapter 20

Crossbar Switch Lite (AXBS-Lite)

20.1 Introduction...................................................................................................................................................................335

20.1.1 Features........................................................................................................................................................335

20.2 Memory Map / Register Definition...............................................................................................................................335

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20.3 Functional Description..................................................................................................................................................336

20.3.1 General operation.........................................................................................................................................336

20.3.2 Arbitration....................................................................................................................................................337

20.4 Initialization/application information...........................................................................................................................338

Chapter 21

Peripheral Bridge (AIPS-Lite)

21.1 Introduction...................................................................................................................................................................339

21.1.1 Features........................................................................................................................................................339

21.1.2 General operation.........................................................................................................................................339

21.2 Functional description...................................................................................................................................................340

21.2.1 Access support.............................................................................................................................................340

Chapter 22

Direct Memory Access Multiplexer (DMAMUX)

22.1 Introduction...................................................................................................................................................................341

22.1.1 Overview......................................................................................................................................................341

22.1.2 Features........................................................................................................................................................342

22.1.3 Modes of operation......................................................................................................................................342

22.2 External signal description............................................................................................................................................343

22.3 Memory map/register definition...................................................................................................................................343

22.3.1 Channel Configuration register (DMAMUXx_CHCFGn)..........................................................................344

22.4 Functional description...................................................................................................................................................345

22.4.1 DMA channels with periodic triggering capability......................................................................................345

22.4.2 DMA channels with no triggering capability...............................................................................................347

22.4.3 Always-enabled DMA sources....................................................................................................................347

22.5 Initialization/application information...........................................................................................................................349

22.5.1 Reset.............................................................................................................................................................349

22.5.2 Enabling and configuring sources................................................................................................................349

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Chapter 23

DMA Controller Module

23.1 Introduction...................................................................................................................................................................353

23.1.1 Overview......................................................................................................................................................353

23.1.2 Features........................................................................................................................................................354

23.2 DMA Transfer Overview..............................................................................................................................................355

23.3 Memory Map/Register Definition.................................................................................................................................356

23.3.1 Source Address Register (DMA_SARn).....................................................................................................357

23.3.2 Destination Address Register (DMA_DARn).............................................................................................358

23.3.3 DMA Status Register / Byte Count Register (DMA_DSR_BCRn).............................................................359

23.3.4 DMA Control Register (DMA_DCRn)........................................................................................................361

23.4 Functional Description..................................................................................................................................................365

23.4.1 Transfer Requests (Cycle-Steal and Continuous Modes)............................................................................365

23.4.2 Channel Initialization and Startup................................................................................................................365

23.4.3 Dual-Address Data Transfer Mode..............................................................................................................367

23.4.4 Advanced Data Transfer Controls: Auto-Alignment...................................................................................368

23.4.5 Termination..................................................................................................................................................369

Chapter 24

Multipurpose Clock Generator (MCG)

24.1 Introduction...................................................................................................................................................................371

24.1.1 Features........................................................................................................................................................371

24.1.2 Modes of Operation.....................................................................................................................................373

24.2 External Signal Description..........................................................................................................................................373

24.3 Memory Map/Register Definition.................................................................................................................................373

24.3.1 MCG Control 1 Register (MCG_C1)...........................................................................................................374

24.3.2 MCG Control 2 Register (MCG_C2)...........................................................................................................375

24.3.3 MCG Control 3 Register (MCG_C3)...........................................................................................................377

24.3.4 MCG Control 4 Register (MCG_C4)...........................................................................................................377

24.3.5 MCG Control 5 Register (MCG_C5)...........................................................................................................379

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24.3.6 MCG Control 6 Register (MCG_C6)...........................................................................................................380

24.3.7 MCG Status Register (MCG_S)..................................................................................................................381

24.3.8 MCG Status and Control Register (MCG_SC)............................................................................................383

24.3.9 MCG Auto Trim Compare Value High Register (MCG_ATCVH)............................................................384

24.3.10 MCG Auto Trim Compare Value Low Register (MCG_ATCVL)..............................................................384

24.3.11 MCG Control 7 Register (MCG_C7)...........................................................................................................385

24.3.12 MCG Control 8 Register (MCG_C8)...........................................................................................................385

24.3.13 MCG Control 9 Register (MCG_C9)...........................................................................................................386

24.3.14 MCG Control 10 Register (MCG_C10).......................................................................................................386

24.4 Functional description...................................................................................................................................................387

24.4.1 MCG mode state diagram............................................................................................................................387

24.4.2 Low Power Bit Usage..................................................................................................................................392

24.4.3 MCG Internal Reference Clocks..................................................................................................................392

24.4.4 External Reference Clock............................................................................................................................393

24.4.5 MCG Fixed frequency clock .......................................................................................................................393

24.4.6 MCG PLL clock ..........................................................................................................................................393

24.4.7 MCG Auto TRIM (ATM)............................................................................................................................394

24.5 Initialization / Application information........................................................................................................................395

24.5.1 MCG module initialization sequence...........................................................................................................395

24.5.2 Using a 32.768 kHz reference......................................................................................................................397

24.5.3 MCG mode switching..................................................................................................................................398

Chapter 25

Oscillator (OSC)

25.1 Introduction...................................................................................................................................................................407

25.2 Features and Modes......................................................................................................................................................407

25.3 Block Diagram..............................................................................................................................................................408

25.4 OSC Signal Descriptions..............................................................................................................................................408

25.5 External Crystal / Resonator Connections....................................................................................................................409

25.6 External Clock Connections.........................................................................................................................................410

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25.7 Memory Map/Register Definitions...............................................................................................................................411

25.7.1 OSC Memory Map/Register Definition.......................................................................................................411

25.8 Functional Description..................................................................................................................................................412

25.8.1 OSC Module States......................................................................................................................................412

25.8.2 OSC Module Modes.....................................................................................................................................414

25.8.3 Counter.........................................................................................................................................................416

25.8.4 Reference Clock Pin Requirements.............................................................................................................416

25.9 Reset..............................................................................................................................................................................416

25.10 Low Power Modes Operation.......................................................................................................................................417

25.11 Interrupts.......................................................................................................................................................................417

Chapter 26

Flash Memory Controller (FMC)

26.1 Introduction...................................................................................................................................................................419

26.1.1 Overview......................................................................................................................................................419

26.1.2 Features........................................................................................................................................................419

26.2 Modes of operation.......................................................................................................................................................420

26.3 External signal description............................................................................................................................................420

26.4 Memory map and register descriptions.........................................................................................................................420

26.5 Functional description...................................................................................................................................................420

Chapter 27

Flash Memory Module (FTFA)

27.1 Introduction...................................................................................................................................................................423

27.1.1 Features........................................................................................................................................................424

27.1.2 Block Diagram.............................................................................................................................................424

27.1.3 Glossary.......................................................................................................................................................425

27.2 External Signal Description..........................................................................................................................................426

27.3 Memory Map and Registers..........................................................................................................................................426

27.3.1 Flash Configuration Field Description.........................................................................................................426

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27.3.2 Program Flash IFR Map...............................................................................................................................427

27.3.3 Register Descriptions...................................................................................................................................428

27.4 Functional Description..................................................................................................................................................436

27.4.1 Flash Protection............................................................................................................................................437

27.4.2 Interrupts......................................................................................................................................................437

27.4.3 Flash Operation in Low-Power Modes........................................................................................................438

27.4.4 Functional Modes of Operation...................................................................................................................438

27.4.5 Flash Reads and Ignored Writes..................................................................................................................438

27.4.6 Read While Write (RWW)...........................................................................................................................439

27.4.7 Flash Program and Erase..............................................................................................................................439

27.4.8 Flash Command Operations.........................................................................................................................439

27.4.9 Margin Read Commands.............................................................................................................................444

27.4.10 Flash Command Description........................................................................................................................445

27.4.11 Security........................................................................................................................................................458

27.4.12 Reset Sequence............................................................................................................................................460

Chapter 28

Analog-to-Digital Converter (ADC)

28.1 Introduction...................................................................................................................................................................461

28.1.1 Features........................................................................................................................................................461

28.1.2 Block diagram..............................................................................................................................................462

28.2 ADC signal descriptions...............................................................................................................................................463

28.2.1 Analog Power (VDDA)...............................................................................................................................464

28.2.2 Analog Ground (VSSA)...............................................................................................................................464

28.2.3 Voltage Reference Select.............................................................................................................................464

28.2.4 Analog Channel Inputs (ADx).....................................................................................................................465

28.2.5 Differential Analog Channel Inputs (DADx)...............................................................................................465

28.3 Memory map and register definitions...........................................................................................................................465

28.3.1 ADC Status and Control Registers 1 (ADCx_SC1n)...................................................................................466

28.3.2 ADC Configuration Register 1 (ADCx_CFG1)...........................................................................................469

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28.3.3 ADC Configuration Register 2 (ADCx_CFG2)...........................................................................................471

28.3.4 ADC Data Result Register (ADCx_Rn).......................................................................................................472

28.3.5 Compare Value Registers (ADCx_CVn).....................................................................................................473

28.3.6 Status and Control Register 2 (ADCx_SC2)................................................................................................474

28.3.7 Status and Control Register 3 (ADCx_SC3)................................................................................................476

28.3.8 ADC Offset Correction Register (ADCx_OFS)...........................................................................................478

28.3.9 ADC Plus-Side Gain Register (ADCx_PG).................................................................................................478

28.3.10 ADC Minus-Side Gain Register (ADCx_MG)............................................................................................479

28.3.11 ADC Plus-Side General Calibration Value Register (ADCx_CLPD).........................................................479

28.3.12 ADC Plus-Side General Calibration Value Register (ADCx_CLPS)..........................................................480

28.3.13 ADC Plus-Side General Calibration Value Register (ADCx_CLP4)..........................................................480

28.3.14 ADC Plus-Side General Calibration Value Register (ADCx_CLP3)..........................................................481

28.3.15 ADC Plus-Side General Calibration Value Register (ADCx_CLP2)..........................................................481

28.3.16 ADC Plus-Side General Calibration Value Register (ADCx_CLP1)..........................................................482

28.3.17 ADC Plus-Side General Calibration Value Register (ADCx_CLP0)..........................................................482

28.3.18 ADC Minus-Side General Calibration Value Register (ADCx_CLMD).....................................................483

28.3.19 ADC Minus-Side General Calibration Value Register (ADCx_CLMS).....................................................483

28.3.20 ADC Minus-Side General Calibration Value Register (ADCx_CLM4).....................................................484

28.3.21 ADC Minus-Side General Calibration Value Register (ADCx_CLM3).....................................................484

28.3.22 ADC Minus-Side General Calibration Value Register (ADCx_CLM2).....................................................485

28.3.23 ADC Minus-Side General Calibration Value Register (ADCx_CLM1).....................................................485

28.3.24 ADC Minus-Side General Calibration Value Register (ADCx_CLM0).....................................................486

28.4 Functional description...................................................................................................................................................486

28.4.1 Clock select and divide control....................................................................................................................487

28.4.2 Voltage reference selection..........................................................................................................................487

28.4.3 Hardware trigger and channel selects..........................................................................................................488

28.4.4 Conversion control.......................................................................................................................................489

28.4.5 Automatic compare function........................................................................................................................497

28.4.6 Calibration function.....................................................................................................................................498

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28.4.7 User-defined offset function........................................................................................................................499

28.4.8 Temperature sensor......................................................................................................................................501

28.4.9 MCU wait mode operation...........................................................................................................................501

28.4.10 MCU Normal Stop mode operation.............................................................................................................502

28.4.11 MCU Low-Power Stop mode operation......................................................................................................503

28.5 Initialization information..............................................................................................................................................503

28.5.1 ADC module initialization example............................................................................................................503

28.6 Application information................................................................................................................................................505

28.6.1 External pins and routing.............................................................................................................................505

28.6.2 Sources of error............................................................................................................................................507

Chapter 29

Comparator (CMP)

29.1 Introduction...................................................................................................................................................................513

29.2 CMP features................................................................................................................................................................513

29.3 6-bit DAC key features.................................................................................................................................................514

29.4 ANMUX key features...................................................................................................................................................515

29.5 CMP, DAC and ANMUX diagram...............................................................................................................................515

29.6 CMP block diagram......................................................................................................................................................516

29.7 Memory map/register definitions..................................................................................................................................518

29.7.1 CMP Control Register 0 (CMPx_CR0).......................................................................................................518

29.7.2 CMP Control Register 1 (CMPx_CR1).......................................................................................................519

29.7.3 CMP Filter Period Register (CMPx_FPR)...................................................................................................521

29.7.4 CMP Status and Control Register (CMPx_SCR).........................................................................................521

29.7.5 DAC Control Register (CMPx_DACCR)....................................................................................................522

29.7.6 MUX Control Register (CMPx_MUXCR)..................................................................................................523

29.8 Functional description...................................................................................................................................................524

29.8.1 CMP functional modes.................................................................................................................................524

29.8.2 Power modes................................................................................................................................................533

29.8.3 Startup and operation...................................................................................................................................534

KL36 Sub-Family Reference Manual, Rev. 3, July 2013

20 Freescale Semiconductor, Inc.

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